The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2007
Filed:
Sep. 09, 2004
David Michael Bird, Bath, GB;
John Mark Pottage, North East Lincolnshire, GB;
Timothy Adam Birks, Bath, GB;
Matthew James Banham, Bath, GB;
David Michael Bird, Bath, GB;
John Mark Pottage, North East Lincolnshire, GB;
Timothy Adam Birks, Bath, GB;
Matthew James Banham, Bath, GB;
Crystal Fibre A/S, Birkerod, DK;
Abstract
Photonic crystal fibers that guide light by virtue of a photonic band gap. Fibers that are formed from materials having higher refractive indices than silica are provided using an optical waveguide including a core with a relatively low refractive index and a photonic band gap structure that can substantially confine light to the core. The structure includes elongate regions of relatively low refractive index interspersed with elongate regions of relatively high refractive index, with the band gap residing above the fifth photonic band of the band gap structure.